解曲线

The alcoholysis of trichlorosilane has been studied experimentally and theoretically,each step is cooperating endothermic process.

采用溶剂法和B3LYP/6-31G基组研究了三氯硅烷的乙醇解反应，计算得出每一步醇解均为放热反应，并得出了反应的最佳温度、最佳进样方式、主反应和副反应的活化能及其可能的反应途径曲线。计算结果和实验结果有较好的一致性

Progress on preparation and purification of trichlorosilane ;2. Study on synthesis of trifluoropropyl trichlorosilane ;3. The alcoholysis of trichlorosilane has been studied experimentally and theoretically,each step is cooperating endothermic process.

采用溶剂法和B3LYP/6-31G基组研究了三氯硅烷的乙醇解反应，计算得出每一步醇解均为放热反应，并得出了反应的最佳温度、最佳进样方式、主反应和副反应的活化能及其可能的反应途径曲线。

Recently some new apparatus are developed to study thermal and photodecomposition mechanism of silver azide .

用量子化学从头计算方法(CASSCF，CI，MC CEPA，ACPF和CEPA)分析了实验结果和叠氮化银的光谱结构，描绘了叠氮化银光解的势能曲线，重新解释了其光解机理。

As a result, it shows thatthe static or dynamic subsystem optimum alone is not equal to the system optimum. Three initial value problems met in the optimal design of flying vehicle are studied andconclusions are derived that: orthogonal test method can be adopted to decide the initial valueof static optimization problem, some mathematical techniques can be used to deal with thecostate variables of Maximum Principle and decide the initial value of the costate variable,the indirect method can be used to get the analytical solution under ideal case to guide thechoice of the initial control curve in the direct method. With some numerical examples oftrajectory optimization, it shows that all these methods are useful not only in accelerating theconvergence but also in converging to the global optimum.

针对飞行器优化设计中的三种初始值问题进行了研究，以远程弹道导弹弹道的工程优化为例说明，对于静态优化问题，采用正交试验法选取初始值，不仅可以大大加快收敛的速度，而且更有可能收敛到全局最优解；以气动力辅助变轨问题为例说明，用共态变量的一阶泰勒级数展开可以解决极大值原理中共态变量初值难于确定的问题；以二级弹道导弹的主动段弹道优化为例说明，利用间接法在理想情况下得到的解析解来指导直接法初始控制曲线的选择，将大大有利于提高直接法的收敛速度。

P-t curves of titanium hydride and titanium deuteride desorbing hydrogen and deuterium are investigated at 350～550 ℃ by using the method of reaction rate analysis in a constant volume system.

在高真空金属系统上测定了氢化钛和氘化钛在恒容体系中、350~550℃温度下热解吸氢和氘的P-t曲线；应用反应速率分析方法计算了各自在不同温度下的反应速率常数，得到氢化钛和氘化钛热解吸的表观活化能分别为27。

The ground state of C2 molecule is studied using VB mehods. The potential energy curves of the C2 diatomic molecule were computed by using ab initio VB methods, VBSCF, BOVB, and VBCI. The computational results show that the VB-based PECs are parallel to that of Full CI calculation.

应用XMVB程序对C2分子的基态进行了理论研究，计算结果表明价键方法能够给出和FCI相平行的解离势能曲线；高级别的VB方法，VBCISD方法，能够得到和高等级分子轨道方法相符的解离能。

In the sense of Von Karman large displacement, the governing equation of nonlinear dynamic response of the clamped circular plates under impact of a mass is established by using the virtual displacement principle and Galerkin's method in this paper. The effect of coupling between the impact load and the displacement of. the circular plates is considered. The governing equation is solved by applying the time increment method and the singular perturbation theory, and the asymptotic solutions of nonlinear dyna...

本文在Von Kármán大位移的意义上，利用虚位移原理伽辽金方法建立了圆板在物体撞击下的非线性动力响应的控制微分方程，在研究响应问题时，考虑了冲击载荷与圆板位移响应之间的耦合影响，文中使用时间增量法和奇异摄动理论求解问题的控制方程，获得了固支圆板非线性动力响应的近似解，并且求解了具体算例，绘出了圆板位移、应力响应曲线以及冲击力随时间的变化曲线。

Through the method of EMD, the fluctuations or trends in the different time level were unbundled to produce a series of different characteristics of the intrinsic mode functions and the system had the evolution curves on a different time scale, which could be as a special solution to the system.

通过EMD方法，将研究对象的不同时间尺度的波动或趋势逐级分解开来，产生一系列具有不同特征尺度的本征模函数，得到系统在不同时间尺度下的演化曲线，可以将这些曲线看成是系统的特解。

The solubility curve of mandelic acid in different solvent and the distribute ratio of mandelic acid in benzene-water system in different pH condition were determine by HPLC. The results showed that the ionization constant pK_a of mandelic acid was 5.28, the solubility of mandeli...

研究结果显示，扁桃酸的离解常数pKa值为5.28；扁桃酸在水和苯中的溶解度曲线可分别表示为：S=38.756e0.0354t和S=0.2746e0.0649t；扁桃酸在水和苯中的溶解度差值曲线可分别表示为：ΔS/S1=0.1196t-2.712和ΔS/S1=0.3688e0.0723t；苯是最适合用于冷却结晶的溶剂；热苯萃取扁桃酸的苯水比例可选为1∶1；降低pH值有利于扁桃酸在苯中的分配。

In this paper, the analytical solutions of reservoir pressure in Laplace space are developed for planar linear flow and radial flow under the condition of constant pressure at inner and outer boundaries, and the pressure distribution curves in some point in the reservoir are obtained using Stehfest numerical inversion algorithm of Laplace transforms.

本文在内、外边界定压的条件下得到了平面单向流和平面径向流两种渗流形式在拉氏空间的解析解，利用Ste hfest数值反演方法给出了地层各点的压力分布曲线，由这些曲线可以清楚地看到流体的流动由不稳态流向稳态流过渡以及最后达到稳态流的过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。